package com.mg.yygh.hosp.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mg.yygh.common.exception.YyghException;
import com.mg.yygh.common.result.ResultCodeEnum;
import com.mg.yygh.hosp.mapper.ScheduleMapper;
import com.mg.yygh.hosp.repository.ScheduleRepository;
import com.mg.yygh.hosp.service.DepartmentService;
import com.mg.yygh.hosp.service.HospitalService;
import com.mg.yygh.hosp.service.ScheduleService;
import com.mg.yygh.model.hosp.BookingRule;
import com.mg.yygh.model.hosp.Department;
import com.mg.yygh.model.hosp.Hospital;
import com.mg.yygh.model.hosp.Schedule;
import com.mg.yygh.vo.hosp.BookingScheduleRuleVo;
import com.mg.yygh.vo.hosp.ScheduleOrderVo;
import com.mg.yygh.vo.hosp.ScheduleQueryVo;
import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.format.DateTimeFormat;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.AggregationResults;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Service;

import java.util.*;
import java.util.stream.Collectors;

/**
 * @author M_Dragon
 * @date 2022/8/31/031 16:52
 */
@Service
public class ScheduleServiceImpl extends
        ServiceImpl<ScheduleMapper, Schedule> implements ScheduleService{
    @Autowired
    private ScheduleRepository scheduleRepository;

    @Autowired
    private MongoTemplate mongoTemplate;

    @Autowired
    private HospitalService hospitalService;

    @Autowired
    private DepartmentService departmentService;

    @Override
    public Page<Schedule> getPage(int page, int limit, ScheduleQueryVo scheduleQueryVo) {
        Pageable pageable = PageRequest.of(page-1,limit);

        Schedule schedule = new Schedule();
        BeanUtils.copyProperties(scheduleQueryVo,schedule);
        schedule.setIsDeleted(0);

        ExampleMatcher exampleMatcher = ExampleMatcher.matching()
                .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING)
                .withIgnoreCase(true);

        Example<Schedule> example = Example.of(schedule,exampleMatcher);

        Page<Schedule> schedules = scheduleRepository.findAll(example,pageable);

        return schedules;
    }

    @Override
    public void save(Map<String, Object> map) {
        // 将参数map转为对象
        String jsonString = JSONObject.toJSONString(map);
        Schedule schedule = JSONObject.parseObject(jsonString, Schedule.class);
        Schedule targetSchedule =
                scheduleRepository.getScheduleByHoscodeAndHosScheduleId(schedule.getHoscode(),schedule.getHosScheduleId());
        if(targetSchedule != null){
            schedule.setId(targetSchedule.getId());
            schedule.setCreateTime(targetSchedule.getCreateTime());
            schedule.setUpdateTime(new Date());
            schedule.setIsDeleted(0);
            schedule.setStatus(1);
        }else {
            schedule.setCreateTime(new Date());
            schedule.setUpdateTime(new Date());
            schedule.setIsDeleted(0);
            schedule.setStatus(1);
        }
        scheduleRepository.save(schedule);
    }

    @Override
    public void remove(String hoscode, String hosScheduleId) {
        Schedule schedule = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(hoscode, hosScheduleId);
        if (schedule != null){
//            repository.deleteById(department.getId());
            schedule.setIsDeleted(1);
            scheduleRepository.save(schedule);
        }
    }

    @Override
    public Map<String, Object> getScheduleRule(Long page, Long limit, String hoscode, String depcode) {

        // 设置要查询/匹配的条件
        Criteria criteria = Criteria.where("hoscode").is(hoscode)
                                .and("depcode").is(depcode);

        Aggregation agg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                // 按某字段分组
                Aggregation.group("workDate")
                .first("workDate").as("workDate")
                 // 做和计算
                .count().as("docCount")
                .sum("reservedNumber").as("reservedNumber")
                .sum("availableNumber").as("availableNumber"),
                // 排序规则
                Aggregation.sort(Sort.Direction.ASC,"workDate"),
                // 分页操作
                Aggregation.skip((page-1) * limit),
                Aggregation.limit(limit)
        );

        AggregationResults<BookingScheduleRuleVo> aggregate = mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList = aggregate.getMappedResults();

        Aggregation aggregationtotal = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate"));
        int total = mongoTemplate.aggregate(aggregationtotal,Schedule.class,BookingScheduleRuleVo.class)
                .getMappedResults().size();

        for(BookingScheduleRuleVo bookingScheduleRuleVo : bookingScheduleRuleVoList){
            String dayOfWeek = getDayOfWeek(new DateTime(bookingScheduleRuleVo.getWorkDate()));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);
        }

        Map<String,Object> result = new HashMap<>();
        result.put("bookingScheduleList",bookingScheduleRuleVoList);
        result.put("total",total);

        Map<String,Object> baseMap = new HashMap<>();
        String hosname = hospitalService.getHosnameByhoscode(hoscode);
        baseMap.put("hosname",hosname);

        result.put("baseMap",baseMap);

        return result;
    }

    @Override
    public List<Schedule> getDetailSchedule(String hoscode, String depcode, String workDate) {

        List<Schedule> scheduleList = scheduleRepository.findScheduleByHoscodeAndDepcodeAndWorkDate(hoscode, depcode, new DateTime(workDate).toDate());

        scheduleList.stream().forEach(item ->{
            this.packageSchedule(item);
        });

        return scheduleList;
    }

    @Override
    public Map<String, Object> getBookingScheduleRule(int page, int limit, String hoscode, String depcode) {
        Map<String, Object> result = new HashMap<>();
        // 获取预约规则
        Hospital hospital = hospitalService.getHospitalByCode(hoscode);
        if(hospital == null){
            throw new YyghException(ResultCodeEnum.DATA_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();
        
        // 获取可预约日期分页数据
        IPage iPage = this.getListDate(page,limit,bookingRule);
        // 当前页可预约日期
        List<Date> dateList = iPage.getRecords();
        // 获取可预约日期科室剩余预约数
        Criteria criteria = Criteria.where("hoscode").is(hoscode)
                .and("depcode").is(depcode)
                .and("workDate").in(dateList);
        Aggregation agg = Aggregation.newAggregation(
                Aggregation.match(criteria),
                Aggregation.group("workDate")
                .first("workDate").as("workDate")
                .count().as("docCount")
                .sum("availableNumber").as("availableNumber")
                .sum("reservedNumber").as("reservedNumber")
        );
        AggregationResults<BookingScheduleRuleVo> aggregationResults =
                mongoTemplate.aggregate(agg,Schedule.class,BookingScheduleRuleVo.class);
        List<BookingScheduleRuleVo> scheduleVoList = aggregationResults.getMappedResults();
        // 获取科室剩余预约数

        // 合并数据，将统计数据SchduleVo根据“安排日期”合并到BookingRuleVo
        Map<Date,BookingScheduleRuleVo> scheduleVoMap = new HashMap<>();
        if(!CollectionUtils.isEmpty(scheduleVoList)){
            scheduleVoMap = scheduleVoList.stream().collect(Collectors.toMap(BookingScheduleRuleVo::getWorkDate,BookingScheduleRuleVo -> BookingScheduleRuleVo));
        }
        List<BookingScheduleRuleVo> bookingScheduleRuleVoList =
                new ArrayList<>();
        for(int i = 0, len = dateList.size(); i < len; i++){
            Date date = dateList.get(i);
            BookingScheduleRuleVo bookingScheduleRuleVo =
                    scheduleVoMap.get(date);
            if(null == bookingScheduleRuleVo){
                // 说明当天没有排班医生
                bookingScheduleRuleVo = new BookingScheduleRuleVo();
                // 就诊医生人数
                bookingScheduleRuleVo.setDocCount(0);
                // 科室剩余预约数 -1 表示无号
                bookingScheduleRuleVo.setAvailableNumber(-1);
            }
            bookingScheduleRuleVo.setWorkDate(date);
            bookingScheduleRuleVo.setWorkDateMd(date);
            //计算当前预约日期为周几
            String dayOfWeek = this.getDayOfWeek(new DateTime(date));
            bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);

            // 最后一页最后一条记录为即将预约 状态 0：正常 1：即将放号 -1：当天已停止挂号
            if(i == len -1 && page == iPage.getPages()){
                bookingScheduleRuleVo.setStatus(1);
            }else {
                bookingScheduleRuleVo.setStatus(0);
            }
            //当天预约如果过了停号时间， 不能预约
            if(i == 0 && page == 1){
                DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
                if(stopTime.isBeforeNow()){
                    // 停止预约
                    bookingScheduleRuleVo.setStatus(-1);
                }
            }
            bookingScheduleRuleVoList.add(bookingScheduleRuleVo);
        }

        //可预约日期规则数据
        result.put("bookingScheduleList",bookingScheduleRuleVoList);
        result.put("total",iPage.getTotal());
        // 其他基础数据
        Map<String, Object> baseMap = new HashMap<>();
        // 医院名称
        baseMap.put("hosname",hospitalService.getHosnameByhoscode(hoscode));
        // 科室
        Department department = departmentService.getDepartment(hoscode, depcode);
        // 大科室名称
        baseMap.put("bigname",department.getBigname());
        // 科室名称
        baseMap.put("depname",department.getDepname());
        // 月
        baseMap.put("workDateString",new DateTime().toString("yyyy年MM月"));
        // 放号时间
        baseMap.put("releaseTime",bookingRule.getReleaseTime());
        // 停号时间
        baseMap.put("stopTime",bookingRule.getStopTime());
        result.put("baseMap",baseMap);

        return result;
    }

    @Override
    public Schedule getById(String scheduleId) {
        Schedule schedule = scheduleRepository.getScheduleByHosScheduleId(scheduleId);
        return this.packageSchedule(schedule);
    }

    @Override
    public ScheduleOrderVo getScheduleOrderVo(String scheduleId) {
        ScheduleOrderVo scheduleOrderVo = new ScheduleOrderVo();

        //排班信息
        Schedule schedule = baseMapper.selectById(scheduleId);
        if(schedule == null){
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }

        //获取预约规则信息
        Hospital hospital = hospitalService.getHospitalByCode(schedule.getHoscode());
        if(hospital == null){
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }
        BookingRule bookingRule = hospital.getBookingRule();
        if(bookingRule == null){
            throw new YyghException(ResultCodeEnum.PARAM_ERROR);
        }

        scheduleOrderVo.setHoscode(schedule.getHoscode());
        scheduleOrderVo.setHosname(hospitalService.getHosnameByhoscode(schedule.getHoscode()));
        scheduleOrderVo.setDepcode(schedule.getDepcode());
        scheduleOrderVo.setDepname(departmentService.getDepname(schedule.getHoscode(), schedule.getDepcode()));
        scheduleOrderVo.setHosScheduleId(schedule.getHosScheduleId());
        scheduleOrderVo.setAvailableNumber(schedule.getAvailableNumber());
        scheduleOrderVo.setTitle(schedule.getTitle());
        scheduleOrderVo.setReserveDate(schedule.getWorkDate());
        scheduleOrderVo.setReserveTime(schedule.getWorkTime());
        scheduleOrderVo.setAmount(schedule.getAmount());

        //退号截止天数（如：就诊前一天为-1，当天为0）
        int quitDay = bookingRule.getQuitDay();
        DateTime quitTime = this.getDateTime(new DateTime(schedule.getWorkDate()).plusDays(quitDay).toDate(), bookingRule.getQuitTime());
        scheduleOrderVo.setQuitTime(quitTime.toDate());

        //预约开始时间
        DateTime startTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
        scheduleOrderVo.setStartTime(startTime.toDate());

        //预约截止时间
        DateTime endTime = this.getDateTime(new DateTime().plusDays(bookingRule.getCycle()).toDate(), bookingRule.getStopTime());
        scheduleOrderVo.setEndTime(endTime.toDate());

        //当天停止挂号时间
        DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
        scheduleOrderVo.setStopTime(stopTime.toDate());

        return scheduleOrderVo;
    }

    @Override
    public void update(Schedule schedule) {
        schedule.setUpdateTime(new Date());
        scheduleRepository.save(schedule);
    }

    private IPage<Date> getListDate(int page, int limit, BookingRule bookingRule) {
        // 当天放号时间
        DateTime releaseTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
        // 预约周期
        Integer cycle = bookingRule.getCycle();
        // 如果当天放号时间已过，则预约周期后一天为即将放号时间，周期加1
        if(releaseTime.isBeforeNow()) cycle += 1;
        // 可预约所有日期，最后一天显示即为放号倒计时
        List<Date> dateList = new ArrayList<>();
        for(int i = 0; i < cycle; i++){
            // 计算当前预约日期
            DateTime curDateTime = new DateTime().plusDays(i);
            String dateString = curDateTime.toString("yyyy-MM-dd");
            dateList.add(new DateTime(dateString).toDate());
        }
        // 日期分页，由于预约周期不一样，页面一排最对显示7天数据，多了就分页显示
        List<Date> pageDateList = new ArrayList<>();
        int start = (page-1)*limit;
        int end = (page-1)*limit+limit;
        if(end > dateList.size()){
            end = dateList.size();
        }
        for (int i = start; i < end; i++){
            pageDateList.add(dateList.get(i));
        }
        IPage<Date> iPage =
                new com.baomidou.mybatisplus.extension.plugins.pagination.Page<>(page,7,dateList.size());
        iPage.setRecords(pageDateList);
        return iPage;
        
    }

    private DateTime getDateTime(Date date, String releaseTime) {
        String dateTimeString = new DateTime(date).toString("yyyy-MM-dd") + " "+ releaseTime;
        DateTime dateTime = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm").parseDateTime(dateTimeString);
        return dateTime;
    }

    private Schedule packageSchedule(Schedule schedule) {
        // 医院名字
        String hosname = hospitalService.getHosnameByhoscode(schedule.getHoscode());
        // 科室名字
        String depname = departmentService.getDepname(schedule.getHoscode(), schedule.getDepcode());
        // 星期
        String dayOfWeek = this.getDayOfWeek(new DateTime(schedule.getWorkDate()));
        schedule.getParam().put("hosname",hosname);
        schedule.getParam().put("depname",depname);
        schedule.getParam().put("dayOfWeek",dayOfWeek);
        return schedule;
    }

    /**
     * 根据日期获取周几数据
     * @param dateTime
     * @return
     */
    private String getDayOfWeek(DateTime dateTime) {
        String dayOfWeek = "";
        switch (dateTime.getDayOfWeek()) {
            case DateTimeConstants.SUNDAY:
                dayOfWeek = "周日";
                break;
            case DateTimeConstants.MONDAY:
                dayOfWeek = "周一";
                break;
            case DateTimeConstants.TUESDAY:
                dayOfWeek = "周二";
                break;
            case DateTimeConstants.WEDNESDAY:
                dayOfWeek = "周三";
                break;
            case DateTimeConstants.THURSDAY:
                dayOfWeek = "周四";
                break;
            case DateTimeConstants.FRIDAY:
                dayOfWeek = "周五";
                break;
            case DateTimeConstants.SATURDAY:
                dayOfWeek = "周六";
            default:
                break;
        }
        return dayOfWeek;
    }

}
